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DI-308
ISDN Router
User's Guide
Rev. 02 (August 2000)
6DI308....02
Printed in Taiwan
RECYCLABLE

Summary of Contents

  • Page 1

    DI-308 ISDN Router User’s Guide Rev. 02 (August 2000) 6DI308.…02 Printed in Taiwan RECYCLABLE...

  • Page 2

    No part of this publication may be reproduced in any form or by any means or used to make any derivative such as translation, transformation, or adaptation without permission from D-Link Corporation/D-Link Systems Inc., as stipulated by the United States Copyright Act of 1976.

  • Page 3

    A list of D-Link offices is provided at the back of this manual, together with a copy of the Registration Card. If a Registration Card for the product in question has not been returned to a D-Link office, then a proof of purchase (such as a copy of the dated purchase invoice) must be provided when requesting warranty service.

  • Page 4

    Wichtige Sicherheitshinweise Bitte lesen Sie sich diese Hinweise sorgfältig durch. Heben Sie diese Anleitung für den spätern Gebrauch auf. Vor jedem Reinigen ist das Gerät vom Stromnetz zu trennen. Vervenden Sie keine Flüssig- oder Aerosolreiniger. Am besten dient ein angefeuchtetes Tuch zur Reinigung. Um eine Beschädigung des Gerätes zu vermeiden sollten Sie nur Zubehörteile verwenden, die vom Hersteller zugelassen sind.

  • Page 5: Table Of Contents

    Table of Contents ...1 NTRODUCTION Product Features ... 1 Applications for your DI-308 ... 3 Internet Access...3 Network Address Translation (NAT) ...3 LAN-to-LAN Enterprise Connections ...3 Telecommuting Server ...3 What This Manual Covers ... 3 What This Manual Doesn’t Cover ... 4 Other Resources ...

  • Page 6: Table Of Contents

    System Timeout ...105 RADIUS A SING UTHENTICATION Installing a RADIUS Server... 106 Configuring the DI-308 for RADIUS Authentication ... 106 Adding Users to the RADIUS Database ... 107 A - T PPENDIX ROUBLESHOOTING Some Common Problems with the DI-308... 108 None of the LEDs are on when you power up the router ...108...

  • Page 7: Table Of Contents

    C – IP P PPENDIX ROTOCOL AND IP Protocol Numbers ... 112 IP Port Numbers... 112 D - T PPENDIX ECHNICAL E – C ID N PPENDIX OUNTRY F – C PPENDIX ONFIGURATION Configuration File Example ... 116 ...118 NDEX ...112 UMBERS ...113...

  • Page 9: I Ntroduction, Product Features

    (Network Address Translation) option, extensive network management capabilities, and solid security features. Product Features The DI-308 router is packed with features that give it the flexibility to provide a complete networking solution for almost any small to medium-sized office environment.

  • Page 10

    This allows the ISDN line to be used for voice as well as data calls. Dial On Demand The Dial On Demand feature allows a DI-308 to automatically place a call to a Remote Node whenever there is traffic coming from any workstation on the LAN (Local Area Network) to that remote site.

  • Page 11: Applications For Your Di-308, Internet Access, Network Address Translation (nat), Lan-to-lan Enterprise Connections, Telecommuting Server

    LAN-to-LAN Enterprise Connections The DI-308 can dial to or answer calls from another remote access router connected to a different LAN. The DI-308 supports TCP/IP and has the capability to bridge any Ethernet protocol. Telecommuting Server The DI-308 allows Remote Dial-in Users to dial in and gain access to your LAN.

  • Page 12: What This Manual Doesn't Cover

    Regardless of the application, it is important that you follow the steps outlined in Chapter 2, “Installation,” to correctly connect your DI-308 to your LAN. You can then refer to other chapters of the manual depending on your specific installation requirements.

  • Page 13: Other Resources, Packing List, Additional Installation Requirements

    Support disk containing RouteMan, a Windows-based configuration program. Packing List Before you proceed further, check all items you received with your DI-308 against this list to make sure nothing is missing. The complete package should include: One DI-308 ISDN router.

  • Page 14: I Nstallation, Ordering Your Isdn Line, The Di-308 Front Panel

    DI-308 ISDN Remote Router Installation This chapter outlines how to connect your DI-308 to your LAN and ISDN line. Refer to the diagrams below to identify all of the ports on your device when you make connections. Ordering Your ISDN Line...

  • Page 15: The Di-308 Rear Panel

    PHONE – 1— Lights up when standard phone port 1 is in use. PHONE – 2— Lights up when standard phone port 2 is in use. The DI-308 Rear Panel POWER — This socket is an 18 volt, 750mA power input jack. If the power adapter included with the router has been lost or misplaced, please ensure that the replacement adapter meets both the voltage and amperage requirements.

  • Page 16: Telephone Features, Installation And Initial Configuration

    DI-308 ISDN Remote Router Telephone Features Up to two telephones can be attached to the DI-308 router via the Phone 1 and Phone 2 telephone jacks located on the rear of the router. The router enables the attached telephones to have a number of features which may or may not be found on normal telephones and are described below.

  • Page 17: A Warning On Connection Cables, Step 1 - Setting Up The Console

    No flow control Step 2 - Connecting the Console to the Router A serial cable is included in the DI-308 package. To connect this cable, plug its nine- pin connector into the 9-pin RS-232 Diagnostic port on the router’s rear panel, then connect the other end to the serial port on the rear of your computer or data terminal.

  • Page 18: Step 3 - Connecting An Isdn Line To The Router

    Configuration, ISDN submenu. Step 5 - Connecting Ethernet Cables to the Router Your DI-308 has eight ports for connecting Ethernet devices to form a LAN. The jacks for ports 1 through 8 are wired to let you connect network end nodes (computers, servers, bridges, other routers, etc.) using up to 100M of standard...

  • Page 19

    USED CONNECTED TYPE Normal Hub or Switch Normal Uplink Server (or PC) Normal Hub or Switch Uplink Uplink Server (or PC) DI-308 ISDN Remote Router CABLE TO USE Crossover (X) Straight-Through (||) Straight-Through (||) Straight-Through (||) Crossover (X) Crossover (X)

  • Page 20: Step 6 - Powering Up Devices For Initial Configuration

    Ethernet cables, and the power adapter. At this point in the installation process you can now power up the console computer, run the terminal emulation software (if necessary), and then power up the DI-308. Step 7 - Initial Configuration of the Router...

  • Page 21

    DI-308 ISDN Remote Router To log on to the router, use the factory set username and password ‘Admin’ (without the quotes). Please note that the user name and password are case-sensitive. Upon entering the username and password (using the tab key to jump to the next field), position the cursor on OK and press <Enter>.

  • Page 22: Step 8 - Configuring The Lan Port

    DI-308 ISDN Remote Router Step 8 - Configuring the LAN Port Preparing the router for connection to a LAN only requires enabling the LAN port, enabling IP networking, assigning the LAN port an IP address and enabling telnet (if necessary). After the LAN port is configured, all other features on the router can be configured remotely through the LAN by using the included Windows-based Router Configuration Utility or Telnet.

  • Page 23: Step 9 – Plugging In All Devices

    <Enter> to save the new settings. Choose Exit in the submenus to return to the Main Menu. The router can now be accessed via the LAN by Telnet, the Web-based DI-308 Router Configuration Utility (included with the router) and other SNMP management applications.

  • Page 24: C Onfiguration And M Anagement, Console Program Main Menu

    DI-308 ISDN Remote Router Configuration and Management After the initial startup (POST) test, the router will prompt you for login and password. This is the opening page of the router’s out-of-band configuration program, called the Console program. The Console program is stored in the Flash memory chips in the router and the settings are written in EEPROM chips in the router.

  • Page 25: System Information

    DI-308 ISDN Remote Router The Main Menu is shown below: As mentioned earlier, your first endeavor should be to increase the automatic timeout. Enter the System Information submenu to do this. System Information This menu contains administrative and system-related information.

  • Page 26: Interface Configuration

    System MAC Address – The physical address of this router. ISDN Switch Type – The type of ISDN switch used by the telephone company that the DI-308 can communicate with. The DI-308 currently supports only the DSS-1 switch type. Interface Configuration...

  • Page 27

    DI-308 ISDN Remote Router The parameters are described below: Description – This is a user-defined, 32-character identifier used to name the LAN. Operation Mode – The LAN port is Auto Negotiation only. State – This is a toggle to Enable or Disable the LAN interface.

  • Page 28: Isdn

    ISDN. Switch Type – This parameter defines the type of ISDN service used. Currently, the DI-308 only supports DSS-1 type ISDN lines. B1 and B2 Channel Usage – This defines whether the ISDN line is a leased line or a normal switched line. If you are not using a leased line connection, set this item to Switch.

  • Page 29: Network Configuration

    If disabled, both B channels will continue their data transmissions uninterrupted and the voice call will be ignored. State – Enables or disables the ISDN port. Network Configuration There is one main item on the DI-308 Network Configuration menu:...

  • Page 30: Ip Configuration

    DI-308 ISDN Remote Router IP Configuration IP protocol configuration and static routes are configured in the IP Configuration submenu. This menu is shown below: IP Stack Configuration The network interface IP address, mask and protocols are specified in the IP Stack...

  • Page 31

    DI-308 ISDN Remote Router Below, the submenus for both the LAN and ISDN interfaces are shown:...

  • Page 32

    DI-308 ISDN Remote Router The parameters are described below: IP Address – This is the IP address for the router on the network to which this interface is connected. Netmask – This is a 32-bit bit mask that shows how the IP address is to be divided into network, subnet and host parts.

  • Page 33

    LAN. The router can also perform DVMRP if this feature is enabled (see Multicast Protocol below), which allows the DI-308 to share multicast information with other routers, enabling IP multicasting over the ISDN port.

  • Page 34

    DI-308 ISDN Remote Router this feature is enabled, RIP packets will be sent to the other routers on the network telling them that data can still be sent to the WAN via this router. Otherwise, the other routers will learn that the WAN link has been disconnected...

  • Page 35: Snmp Agent Configuration

    The Simple Network Management Protocol (SNMP), defined in STD 15, RFC 1157, is a protocol governing the management and the monitoring of IP network devices and their functions. The DI-308 supports the use of SNMP to acknowledge communication between management stations and itself. Basically, the DI-308,...

  • Page 36: Snmp Community Configuration

    SNMP agent, a software process that responds to queries using SNMP to provide status and statistics about the router. Following is a description of how to configure the DI-308 for SNMP management. From the Main Menu, select SNMP Agent Configuration. This will bring you to the SNMP Agent Configuration menu, shown above.

  • Page 37: Snmp Trap Manager

    Invalid is the same as removing the string, however, the string remains so as to be validated at an appropriate time. SNMP Trap Manager From the SNMP Agent Configuration menu, select and enter the SNMP Trap Manager submenu. You will see the following configuration screen: DI-308 ISDN Remote Router...

  • Page 38: Snmp Authenticated Trap, Advanced Functions

    The parameters are described below: IP Address – Enter the IP address of the host who will act as an SNMP Management Station. The DI-308 router will send SNMP traps to these addresses. SNMP Community String – The community string is a user-defined identifying name used to group together some arbitrary set of SNMP application entities managed by the network manager.

  • Page 39: Remote Access Configuration

    The B-Channels can also carry voice and fax calls, which are routed to the telephone jacks located on the rear of the router. Please note, however, that the DI-308 can maintain only two connections at a time via the two B channels, whether the...

  • Page 40

    Once this is done, the remote user will be able to use network resources as if he were connected locally. When the user dials into the DI-308, the call comes into the D-channel and after answering the phone, the DI-308: 1.

  • Page 41

    This is because if a user on your LAN makes a request to download a web page for the first time, for instance, since it is the first time, the DI-308 will not have any record of the web page’s IP address. If no default next hop router is defined, the request will be dropped and the user will get a ‘Destination Unreachable’...

  • Page 42

    DI-308 ISDN Remote Router...

  • Page 43

    DI-308 ISDN Remote Router Dial Configuration You can configure the two ISDN interfaces on your DI-308 to dial-out only when a packet is forwarded to that interface, and hang up after all data has been transferred and the link is idle. This can be used to lower the cost of an unpopular link or used as a backup link to your ISP.

  • Page 44

    DI-308 ISDN Remote Router The items are described as follows: IP Address – This is the first IP Address that will be assigned to a dial-in user. Range – This is the number of IP Addresses that can be assigned. In the window shown above, dial-in users will be assigned the IP Addresses 170.100.200.1 or...

  • Page 45

    Dial-In User Profile The Dial-In User Profile screen is used to configure the DI-308 for single users (for example a person working at home) to dial in to the router and gain access to the network.

  • Page 46

    DI-308 ISDN Remote Router Press <Enter> to access the submenu that appears below: The parameters in the above window are described as follows: Name – The maximum length is 64 characters. This username is for password challenges (authentication). The user dialing in must supply this username in order to be allowed access to the router.

  • Page 47

    Remote Network Profile The Remote Network Profile is used to configure the router for ISDN connections to other networks. In practice, the DI-308 will either dial-out to or receive incoming calls from another router, the ‘gateway’ to the other network.

  • Page 48

    DI-308 ISDN Remote Router Press <Enter> to access the submenu that appears below: Remote Name – Name for the remote network that the DI-308 is being set up to connect with. Direction – Dial-[In], dial-[Out], or [Both]. This field defines whether the router...

  • Page 49

    When this is set to In, the DI-308 will only establish a connection with the other network by receiving calls on the ISDN port specified in the Interface field below. Also, the incoming calls will be subject to the Name, Password and Rem CLID fields in the Incoming section below.

  • Page 50: Dhcp Configuration

    If MLPPP is enabled and BOD is disabled, then both ports will dial up, establish a direct connection, and combine the bandwidth of the two connections using the MLPPP protocol. Please note that the DI-308 contains only one MLPPP bundle.

  • Page 51

    DI-308 ISDN Remote Router since many administrative tasks such as keeping track of each computer’s IP address are handled by the router. The DI-308 can implement DHCP in one of the two ways shown below: DHCP Server Configuration When acting as a DHCP server, the DI-308 will manage many of the IP network parameters.

  • Page 52

    DI-308 ISDN Remote Router Dynamic IP Pool The Dynamic IP Pool screen shown below contains the parameters that the router can set on the hosts. Please note that the dynamic IP pool cannot be enabled when the DHCP Agent feature is enabled.

  • Page 53

    IP addresses to function properly or to make them accessible to remote users. The host is identified by the MAC address of its NIC, which must be entered on this screen. Highlight the desired entry on the Static IP Pool screen: Press <Enter> to access the following screen: DI-308 ISDN Remote Router...

  • Page 54

    DHCP Relay Agent The DHCP Relay Agent feature allows the DI-308 to act as a go-between for a remote DHCP server assigning IP addresses to local clients. This can be useful if you wish to have all IP addresses in your company, including those in branch offices,...

  • Page 55: Filter Configuration

    State – Enables or disables the DHCP Relay Agent function. Filter Configuration Your DI-308 uses filters (configurable at two layers) to screen packet data, and apply a routing decision. There are two methods for configuring filters: you can configure a filter at the network layer (IP filter) to restrict access between networks and reduce unnecessary internetwork traffic;...

  • Page 56

    DI-308 ISDN Remote Router The three submenus are described as follows: Filter State of Interface – This is used to choose the default, routing decisions for packets, not meeting the criteria for specific filters. Layer 2 Filter – This is a data-link layer (protocol independent) filter.

  • Page 57

    The Layer 2 Filter submenu contains a protocol independent (data-link layer) filter. Foreknowledge of the specific protocol used on the interface (LAN or WANs) is needed to make effective use of this filter. Highlight the desired entry on the Layer 2 Filter screen: DI-308 ISDN Remote Router...

  • Page 58

    DI-308 ISDN Remote Router Press <Enter> to access the following screen: The parameters of a filter are described below: Name – This is a 12 character (maximum), alphanumeric, user-defined name, used to identify the filter. Direction – This defines the direction of the frame relative to the Interface...

  • Page 59

    It is necessary to have knowledge of IP protocol before effectively configuring this filter. Highlight the desired entry on the IP Filter screen: DI-308 ISDN Remote Router...

  • Page 60

    DI-308 ISDN Remote Router Press <Enter> to access the following screen: The IP Filter parameters are described below: Name – This is a 12 character (maximum), alphanumeric, user-defined name, used to identify the filter. Direction – This defines the direction of the packet relative to the Interface...

  • Page 61

    ICMP Code – This is the code field, in the ICMP header, used to further specify the ICMP type. TCP Flag – This is a hex number, representing the six flag bits in the TCP header. The value range is from 0 to 3F. DI-308 ISDN Remote Router...

  • Page 62: Multiple Home Configuration

    DI-308 ISDN Remote Router Multiple Home Configuration Besides the IP address assigned to the LAN interface in the Network Configuration menu, the LAN may have up to 3 additional IP interfaces. These additional IP interfaces are referred to as MIP1 to MIP3. This type of configuration is known as a multiple home configuration.

  • Page 63: Static Arp

    Basically, when a packet comes into the router from the ISDN line and is destined for a host on the LAN, the router will use information defined here to immediately send the packet to the host rather than send out an ARP request to find the host’s MAC address. DI-308 ISDN Remote Router...

  • Page 64

    DI-308 ISDN Remote Router Press <Enter> to access the following screen: The parameters are described as follows: IP Address – This is the IP address of the host you wish to define a static ARP for. MAC Address – This is the physical address of the host that is the authorized owner of the IP address.

  • Page 65: Nat Configuration

    NAT and NAPT unless otherwise stated. NAT can work in conjunction with DHCP. Thus, if both are enabled and properly configured, the DHCP server in the DI-308 will assign local IP addresses to computers on your network. How NAT Works In the most common NAT configuration, your network uses local IP addresses that are not valid on the Internet.

  • Page 66

    DI-308 ISDN Remote Router Router Please note that in the above diagram, the Gateway IP address settings for the local PC’s needs to be set to 192.168.100.1, the LAN IP address of the router. NAT manipulates the IP addresses in packet headers on a one-to-one basis. An...

  • Page 67

    Global IP Addresses Local IP Addresses (for use with NAT) (assigned to computers on the local network) 200.100.50.1 192.168.100.2 200.100.50.2 192.168.100.3 200.100.50.3 192.168.100.4 200.100.50.4 192.168.100.5 200.100.50.5 192.168.100.6 192.168.100.7 192.168.100.8 192.168.100.9 192.168.100.10 DI-308 ISDN Remote Router...

  • Page 68

    DI-308 ISDN Remote Router Setting Local IP Addresses When implementing NAT and thus creating a private network that is isolated from the Internet, you can assign any IP addresses to host computers without problems. However, the Internet Assigned Numbers Authority (IANA) has reserved the...

  • Page 69

    DI-308 ISDN Remote Router For any NAT entry, you must configure two different screens. The first one is accessible by positioning the cursor over the name field and hitting <Enter> (in the window shown above, this corresponds to the field ‘132’). After configuring the NAT options in the Name field, you must save the changes, EXIT, and position the cursor over the NAT IP Pool to configure variables there.

  • Page 70

    DI-308 ISDN Remote Router The parameters are described as follows: Name – This is a 12 character, alphanumeric, user-defined name, used to identify the network address translation. Global Interface – This is the interface corresponding to the Global IP and Range parameters, in the NAT table, to form unique IP address[es], known to the outside (regional or Internet) routers, on this interface.

  • Page 71

    This screen (below) is how the NAT IP Pool appears, if Dynamic NAPT was chosen for the Translation Mode parameter. Each entry, in this configuration, can be used to map a single global address and multiple, contiguous local addresses to each other. DI-308 ISDN Remote Router...

  • Page 72

    DI-308 ISDN Remote Router All of the parameters are the same as in Dynamic NAT, except the Global IP is a solitary, global address. Global IP – This is a single, globally unique IP Address of the global interface (the interface to which it is assigned, in this case, one of the ISDN interfaces) that is valid on the Internet.

  • Page 73

    Translation Mode parameter. Each entry in this configuration can be used to map a global address and port to a local address and port. Notice that the global address will be the external IP address of the global interface. DI-308 ISDN Remote Router...

  • Page 74: Configure Napt For Special Ap[plication]s

    DI-308 ISDN Remote Router Port – This is a destination port number used by TCP and UDP to de-multiplex incoming IP packets. In the above example, incoming packets with the global destination IP Address (211.11.22.3) and global destination TCP/UDP port (21) will be translated to a packet with the local destination IP Address (1.1.1.5) and local TCP/UDP port (21).

  • Page 75

    <Enter>. This will take you to the NAPT configuration screen for special applications shown below. The fields in the above window are described as follows: Protocol – UDP or TCP. This field designates the type of packets that will be acted on. DI-308 ISDN Remote Router...

  • Page 76

    DI-308 ISDN Remote Router Start Port – Some applications can only send data over a certain range of port numbers. Thus, all port numbers in the specified range must be exempt from the NAPT port translation process. This field defines the beginning range of the port numbers to be exempted from the NAPT port translation process.

  • Page 77: Telnet/discovery Enable, Dns Configuration

    RouteMan. DNS Configuration The DI-308 router has a built in recursive DNS server. The maximum amount of memory that will be used by the router’s Domain Name Server is 64Kb which averages out to be about 800 entries. In other words, up to 800 domain names and their associated IP Addresses can be stored, which can significantly speed up access to those domains.

  • Page 78

    DNS Configuration submenu above (in this case, dlink.com) to produce ctsnow.dlink.com. The mapping in the example of ctsnow.dlink.com to the IP Address of 11.1.1.3 is only valid for computers which set the DI-308 router as their DNS server.

  • Page 79

    DI-308 ISDN Remote Router Items are described as follows: IP – The IP address for the host. Host Name – The host name used by the host. State – Enables or disables entry.

  • Page 80: Radius Configuration

    DI-308 ISDN Remote Router RADIUS Configuration RADIUS is an authentication protocol where passwords are stored on a RADIUS server. RADIUS allows large numbers of passwords to be stored in a centralized location. Before instituting RADIUS, please setup and install a RADIUS server on the LAN.

  • Page 81: Multi-link Ppp Configuration

    MLPPP. Typically MLPPP is used to combine the speed of two ISDN BRI B- Channels to get 128Kbps of virtual capacity. Before implementing MLPPP on the DI-308, please ensure that your ISP or the device to which you are connecting supports, and is configured for MLPPP.

  • Page 82

    DI-308 ISDN Remote Router Bandwidth on Demand – Enables or disables BOD. When enabled, BOD will manage the implementation of MLPPP using the parameters defined in this window. BOD Criteria – TX, RX, or TX or RX, where TX is Transmit and RX is Receive.

  • Page 83: Admin Configuration, System Maintenance

    These tools include updates on system status, upgrades to the system software, analysis, diagnostic tools and more. This section will describe how to use these tools in greater detail. The System Maintenance submenu appears as follows: DI-308 ISDN Remote Router...

  • Page 84: System Status, Statistics

    DI-308 ISDN Remote Router System Status The System Status submenu displays key information about the router and appears as follows: Statistics This feature displays some of the counters contained in MIBII and the proprietary MIB. The table is updated every 5 seconds, and the counter table can be reset by...

  • Page 85

    Tx Packets – The total number of valid packets transmitted by the router since the last reset. Tx Bytes – The total number of bytes transmitted by the router. Tx Discard Packets – The number of packets dropped by the router. DI-308 ISDN Remote Router...

  • Page 86

    DI-308 ISDN Remote Router Tx Error packets – The number of invalid packets transmitted by the router. This hardware counter shows the sum of Collisions, Abort, and Underrun packets. Tx Collision Packets – The number of packets sent out of the router that collided on the line.

  • Page 87

    DI-308 ISDN Remote Router ISDN Counter Table Tx Packets – The total number of valid packets transmitted by the router since the last reset. Tx Bytes – The total number of bytes transmitted by the router. Tx Discard Packets – The number of packets dropped by the router.

  • Page 88: Runtime Tables

    Rx Parity Err Packets – The number of times parity errors occurred on the line. Runtime Tables There are three types of runtime tables maintained by the DI-308: IP Routing Table The IP Routing Table gives you a snapshot of the IP routing table. Table entries will expire after the Age value in the table counts down to zero seconds (except for entries for the router itself which have an age value of zero but will never expire).

  • Page 89

    DI-308 ISDN Remote Router IP Address – This is the destination, network IP address from an incoming packet. Netmask – This mask is received from RIP exchanges and internal calculations, as the router learns. Gateway – This is the next-hop router for which the packet, with destination IP Address and qualifying Netmask, will be forwarded.

  • Page 90

    DI-308 ISDN Remote Router ARP Table This Address Resolution Protocol table displays how the router maps individual IP addresses to specific MAC addresses. PPP Table This table displays which PPP protocol is negotiated and its present status. Select an entry and then press <Enter>.

  • Page 91: Log And Trace

    This feature files events and errors that occurred and allows individual packets to be captured in a buffer. These items are to help D-Link technical support personnel identify problems that may be affecting your router. If problems occur with your router, D-Link technical support personnel will guide you through the use of these features.

  • Page 92

    DI-308 ISDN Remote Router Event/Error Log Log Configuration This option allows you to enable or disable the Event/Error log and begin recording events. View Log File This displays the Event/Error Log file shown below:...

  • Page 93

    Port – The interface on which an event occurs. Time – Tick-times denoting when events occurred. Data – Data petaining to specific events. Trace Buffer This feature captures packets in a buffer to help D-Link technical support personnel identify problems with your router. DI-308 ISDN Remote Router...

  • Page 94

    DI-308 ISDN Remote Router Trace Buffer Configuration Enables or disables the Trace Buffer feature. The contents are described as follows: Interface – This is the interface from which the packets were captured. Direction – The incoming or outgoing connection direction.

  • Page 95

    This is useful when a network administrator wants to control access and costs. If a packet from an undesired source is found, an IP Filter can be created to insure such a packet is discarded when received. DI-308 ISDN Remote Router...

  • Page 96: Diagnostic

    DI-308 ISDN Remote Router Diagnostic This feature tests the connection between the router and connected peripherals on a given interface. Connection Test This feature tests a dial-out ISDN connection.

  • Page 97

    DI-308 ISDN Remote Router Interface – The ISDN B-channel to be tested. Phone Number – The phone number that will be dialed by the ISDN Interface. Please ensure that a modem answers the phone on the other end. Connection Test – Position the cursor over this item and press <Enter> to begin the test.

  • Page 98

    DI-308 ISDN Remote Router IP Address – This is the IP Address of the device that the router will attempt to reach. The router will check its routing table and try to locate the IP Address. Count – The number of pings (packets) that will be sent. A value of 0 will cause pings to be sent continuously.

  • Page 99

    DI-308 ISDN Remote Router Press <Enter> to access the next screen: Phone Number – Enter your own phone number here to establish a connection between your ISDN B1 and B2 channels. Packet Length – [1 to 1500 bytes]. This field allows you to define different sized data packets to test the ISDN line.

  • Page 100

    DI-308 ISDN Remote Router System LAN Test The System LAN test is used to diagnose the LAN port. It can only be run if the LAN port is disabled in the Interface Configuration submenu. System ISDN Test This test diagnoses the ISDN ports. It can only be run if the ISDN port is disabled in...

  • Page 101: Software Update, System Restart

    Performing a System Restart after configuring these settings begins the software update procedure. System Restart The system restart function enables you to reset the DI-308 without powering off. Some setting changes require a system restart in order for them to take effect. DI-308 ISDN Remote Router...

  • Page 102: Factory Reset

    DI-308 ISDN Remote Router A system restart will not affect the router’s settings, but will clear all tables including the routing table and all SNMP counters and tables. It is also used to initiate a software update. Factory Reset Performing a factory reset erases all settings and tables. All configuration changes ever made to the router will be deleted.

  • Page 103: System Settings Backup/restore

    Software Update submenu. The files defined here can be used as a backup for all the router settings and can be used to configure another DI-308 with exactly the same settings, or as a backup before you make major changes to the configuration.

  • Page 104

    DI-308 ISDN Remote Router After filling in the top three fields, select Start Backup and then press <Enter>. Items in the windows above and below include: Remote IP Address – This is the IP address of the TFTP server on which you wish to store the settings file.

  • Page 105

    DI-308 ISDN Remote Router After filling in the top three fields, select Start Restore and then press <Enter>.

  • Page 106

    DI-308 ISDN Remote Router PROM System Configuration The PROM program is run before the normal console (runtime) configuration program in the router’s Flash Memory. Thus, the PROM System Configuration can be used if there are problems with the router’s console program.

  • Page 107: System Configuration

    DI-308 ISDN Remote Router System Configuration The parameters are described as follows: Hardware Revision – This is the version ID of hardware used in this router. Boot PROM Firmware Version – This is the version ID of firmware used in this router.

  • Page 108: Tcp/ip Parameters Configuration, System Reset

    TFTP server IP Address and the routers own IP Address. System Reset The system reset function enables you to reset the DI-308 without powering off. Some setting changes require a system reset in order for them to take effect.

  • Page 109

    DI-308 ISDN Remote Router A system reset will not affect the router’s settings, but will clear all tables including the routing table and all SNMP counters and tables. It is also used to initiate a software update. Software Update The Software Update option is used to change the software in the flash memory of the router.

  • Page 110

    DI-308 ISDN Remote Router Items listed in the above menu are described as follows: Software Update Control – This toggles Disable and Enable. Software Update Mode – This specifies downloading the image file from a Network server on the local LAN.

  • Page 111: Eeprom Factory Reset, Execute Bootload

    Execute Bootload Choosing this option accepts the changes made in the PROM program and begins the router’s startup sequence. Executing a bootload can also begin the Software Update procedure, if enabled. DI-308 ISDN Remote Router...

  • Page 112: Using Telnet, Telnet Configuration, Using Telnet Via Lan, Using Telnet Via Isdn

    Telnet. Telnet Configuration In order to use Telnet, the DI-308 router must first be configured using a console connected to the RS-232 Diagnostic port. Depending on the placement of the management station using Telnet, the initial configuration requirements for the...

  • Page 113: System Timeout

    DI-308 ISDN Remote Router System Timeout When you are connected to your DI-308 via Telnet, there is a system timeout (in the System Information submenu), adjustable to a maximum of 90 minutes. If you are logged onto the device and leave it inactive for this timeout period, the router will...

  • Page 114: U Sing Radius A Uthentication, Installing A Radius Server, Configuring The Di-308 For Radius Authentication

    Configuring the DI-308 for RADIUS Authentication To configure the DI-308 to use the RADIUS server set up in the previous section, go to the Main Menu in the console program and choose Advanced Functions and then RADIUS Configuration.

  • Page 115: Adding Users To The Radius Database

    192.168.0.1 should be added to the client file. The Client Name field in the file gives the IP address of the DI-308, and the Key field should be the same as the Key field in the RADIUS Configuration submenu. After a RADIUS server has been configured, the DI-308 will use it to authenticate all users instead of checking its internal Dial-In User Profile.

  • Page 116: A Ppendix A - T Roubleshooting, Some Common Problems With The Di-308

    None of the LEDs are on when you power up the router Check the power cord and the power supply and make sure it is properly connected to your DI-308. If the error persists, you may have a hardware problem. In this case you should contact technical support.

  • Page 117

    5. Check to make sure an end station IS NOT connected to the Uplink port or that a switch or hub IS connected to the Uplink port using straight-through cables. 6. Check to make sure the wires in the cable are attached to the appropriate pins in the RJ-45 connector. DI-308 ISDN Remote Router...

  • Page 118: A Ppendix B - Ip C Oncepts, Ip Addresses, Ip Network Classes

    DI-308 ISDN Remote Router Appendix B - IP Concepts This appendix describes some basic IP concepts, the TCP/IP addressing scheme and show how to assign IP Addresses. When setting up the router, you must make sure all ports to be utilized on the router have valid IP addresses. Even if you will not use the ISDN or WAN ports, you should, at the very least, make sure the LAN port is assigned a valid IP address.

  • Page 119: Subnet Mask

    IP address. Any bit an a subnet mask that is to correspond to a net ID bit in the IP address must be set to 1. Class Beginning Address 10.0.0.0 172.16.0.0 192.168.0.0 IP Class Class A Class B Class C 255.255.255.0 DI-308 ISDN Remote Router Ending Address 10.255.255.255 172.31.255.255 192.168.255.255 Subnet Mask 255.0.0.0 255.255.0.0...

  • Page 120: Ip Protocol Numbers, Ip Port Numbers, Port Number

    DI-308 ISDN Remote Router Appendix C – IP Protocol and Port Numbers Common Internet service protocols and IP port numbers. IP Protocol Numbers IP Port Numbers Protocol # Protocol Name ICMP Internet Control Message [RFC792] IGMP Internet Group Management [RFC1112]...

  • Page 121: Pecifications

    16Kbps D channel x 1 DSS1 Hi/fn LZS (Stac) TCP/IP with RIP-1 and RIP-2, static routes UDP, TCP, NAT, DHCP, BAP/BACP, ICMP MIB-II PAP, CHAP Administrative password Firewall filtering RADIUS 18V 2.5A unregulated or regulated 8.5W max. DI-308 ISDN Remote Router...

  • Page 122

    DI-308 ISDN Remote Router Ventilation Operating Temperature Storage Temperature Humidity Dimensions Emissions (EMI) Safety Fanless 0 - 50 C (32 - 122 F) -25 - 55 C (-13 - 131 F) 5% - 95% non-condensing 220mm x 166mm x 45mm (8 3/5"...

  • Page 123: Umbers

    47 : Iraq 48 : Ireland 49 : Mexico 50 : Peru 51 : Portugal 52 : Romania 33 : Russia 54 : Saudi Arabia 55 : South Africa 57 : Ukraine 58 : Sri Lanka DI-308 ISDN Remote Router...

  • Page 124: Configuration File Example, File

    IP routing statistics. disable is the parameter you set. Configuration File Example # The system configuration file for D-Link DI-308 ISDN Remote Access Router # DI-308 runtime image file name (software update path and file name) di308-image d:\project\di308\runtime\image\308run\308run.hdr # sysname (string name)

  • Page 125

    DI-308 ISDN Remote Router ip-address 202.39.74.115 # subnet mask ip-netmask 255.255.255.0 # routing protocol type (0:RIPv1, 1:RIPv2, 2:RIPv1&2) routing-type 2 # routing operating mode (0:None, 1:Listen, 2:Talk, 3:Both) operating-mode 1 # ip routing stat (enable/disable) ip-stat enable # interface description (string name)

  • Page 126: Index

    DI-308 ISDN Remote Router Index A/B Adapter, 8 Access Right, 36 Admin Configuration, 82 Advanced Functions, 37 Age, 88 ARP request, 40 ARP Table, 89 Auth Type, 39 automatic timeout, 24 B (Bearer) channels, 38 Bandwidth Allocation Control Protocol, 9...

  • Page 127

    Router Advertisement, 34 Router Configuration Utility, 21, 100 Routing Mode, 32 Routing Protocol, 31, 62 routing table, 40 RS-232, 9, 16, 19, 111, 115 runtime software, 108 Runtime Tables, 87 SAVE, 110 security, 64 Send BootP request, 107 DI-308 ISDN Remote Router...

  • Page 128

    DI-308 ISDN Remote Router Set Peer IP as default Gateway, 48 Simple Network Management Protocol. See SNMP Single User Account, 8, 10 SMT, 115 SNMP, 9, 34, 35 SNMP Agent Configuration, 34 SNMP Authenticated Trap, 37 SNMP Community, 35 SNMP Community String, 36, 37...

  • Page 129

    2F, No. 119 Pao-Chung Road, Hsin-Tien, Taipei, Taiwan, R.O.C. TEL: 886-2-2910-2626 FAX: 886-2-2910-1515 URL: www.dlinktw.com.tw E-MAIL: dssqa@tsc.dlinktw.com.tw U.K. D-LINK EUROPE D-Link House, 6 Garland Road, Stanmore, London HA7 1DP U.K. TEL: 44-20-8235-5555 FAX: 44-20-8235-5500 BBS: 44-20-8235-5511 URL: www.dlink.co.uk E-MAIL: info@dlink.co.uk U.S.A. D-LINK U.S.A.

  • Page 130

    3. What network protocol(s) does your organization use ? !XNS/IPX !TCP/IP !DECnet !Other_____________________________ 4. What network operating system(s) does your organization use ? !D-Link LANsmart !Novell NetWare !NetWare Lite !SCO Unix/Xenix !PC NFS !3Com 3+Open !Banyan Vines !DECnet Pathwork !Windows NT !Windows NTAS !Windows '95 !Other__________________________________________ 5.

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